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Viscous limitation of large-amplitude pulses in two-component plasmas
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Rowlands, G. (George) and Infeld, E. (Eryk) (2008) Viscous limitation of large-amplitude pulses in two-component plasmas. EPL, Volume 83 (Number 1). doi:10.1209/0295-5075/83/15004
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Official URL: http://dx.doi.org/10.1209/0295-5075/83/15004
Abstract
Some time ago, we found an exact solution for nonlinear cold-plasma oscillations against a periodic ion background. The main and somewhat surprising physical effect due to the fixed ion background was the appearance of unbounded-electron density and electric-field intensity peaks. Along with others, we then tried to understand this in terms of realistic physical situations. Here we present a calculation indicating that these infinities can be removed by inclusion of viscous effects. A discussion of possible regions of validity of the model is given. For removal of infinities, the viscosity must be larger than a critical value depending on both the amplitude and spacing of the periodic ion background. Lagrangian coordinates are crucial in this calculation. Copyright (c) EPLA, 2008.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Plasma (Ionized gases), Plasma dynamics, Viscosity, Nonlinear oscillations | ||||
| Journal or Publication Title: | EPL | ||||
| Publisher: | EDP SCIENCES S A | ||||
| ISSN: | 0295-5075 | ||||
| Official Date: | 2008 | ||||
| Dates: |
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| Volume: | Volume 83 | ||||
| Number: | Number 1 | ||||
| Number of Pages: | 3 | ||||
| DOI: | 10.1209/0295-5075/83/15004 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published |
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